Powersolve PS100W User Manual

High Density DC-DC Modules

PS100W Series
66-100 Watt
DC-DC Converters
Single Output

Features

• Ultra Wide 4:1 Input Range

• Efficiency to 88%

• 250KHz Switching Frequency

• Regulated Outputs

• Continuous Short Circuit Protection

• Five Sided Metal Case

• Industry Standard Half-Brick Package

Electrical Specification

INPUT

Input Voltage Range 9 ~ 36V (24V input version)

18 ~ 75V (48V input version)

Undervoltage Lockout 8.8V (24Vin power up)

8.0V (24Vin power down)
17V (48Vin power up)
16V (48Vin power down)

Positive Logic Remote ON/OFF Open collector ref. to -Input

Module ON: >3.5VDC or open circuit, Module OFF: <1.8VDC
Add suffix N to the Model Number for Negative Logic Remote ON/OFF control

Input Filter PI Type

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OUTPUT

Voltage Accuracy ±1.5% max.
Transient Response: 25% Step Load Change <500µsec
External Trim Adj. Range ±10%
Ripple & Noise, 20MHz BW 40mV RMS max, 100mV pk-pk max. (3.3V & 5V output versions)

ENVIRONMENTAL

Temperature coefficient ±0.03%/°C
Short Circuit Protection Continuous
Line Regulation ±0.2% max. measured over the full input voltage range
Load Regulation ±0.2% max. measured from 0-100% load
Over Voltage Protection trip range, % Vo nom. 115 ~ 140%
Current Limit 110% ~ 140% Nominal Output

GENERAL

Efficiency See table
Isolation Voltage IP/OP, IP/Case, OP/Case: 1500VDC min
Isolation Resistance 107ohms min.
Switching Frequency 250KHz Typ.
Operating case Temperature -40°C to +100°C
Storage Temperature -55°C to +105°C
Thermal Shutdown, Case Temp. +105°C Typ.
Dimensions 2.28 x 2.40 x 0.50 inches

Case Material Aluminium

60mV RMS max, 150mV pk-pk max. (12V & 15V output versions)
100mV RMS max, 240mV pk-pk max. (24V output version)
measured with a 10µF tantalum & 1.0µF ceramic capacitor across the output

57.9 x 61.0 x 12.7 mm

Powersolve Electronics Ltd. 8A Arnhem Road, Newbury, RG14 5RU. England

Tel: [phone] Fax: [phone] Email: [e-mail]

High Density DC-DC Modules

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Output Voltage and Current Ratings

MODEL INPUT OUTPUT OUTPUT INPUT CURRENT EFF.

PS100W-24S3V3 9-36VDC 3.3VDC 20A 35mA 3374mA 81.5%
PS100W-24S05 9-36VDC 5VDC 20A 35mA 4990mA 83.5%
PS100W-24S12 9-36VDC 12VDC 8.3A 35mA 4902mA 85%
PS100W-24S15 9-36VDC 15VDC 6.7A 35mA 4817mA 86.5%
PS100W-24S24 9-36VDC 24VDC 4.17A 35mA 4849mA 86%
PS100W-24S48 9-36VDC 48VDC 2.08A 35mA 5042mA 82.5%
PS100W-48S3V3 18-75VDC 3.3VDC 20A 30mA 1708mA 80.5%
PS100W-48S05 18-75VDC 5VDC 20A 30mA 2422mA 86%
PS100W-48S12 18-75VDC 12VDC 8.3A 30mA 2408mA 86.5%
PS100W-48S15 18-75VDC 15VDC 6.7A 30mA 2381mA 87.5%
PS100W-48S24 18-75VDC 24VDC 4.17A 30mA 2367mA 88%
PS100W-48S48 18-75VDC 48VDC 2.08A 30mA 2462mA 84.5%

NOTE: Nominal Input Voltage 24 or 48VDC

VOLTAGE VOLTAGE CURRENT NO LOAD FULL LOAD

Mechanical and Connection Details

Pin Function

1 +Vin
2 ON/OFF
3 CASE
4 -Vin
5 -Vout
6 -Sense
7 Trim
8 +Sense
9 +Vout

All dimensions in inches (mm)
Tolerances Inches x.xx ±0.02 x.xxx ±0.010

Remote ON/OFF Control

The PS100W Series allows the user to switch the module on and off electronically with the remote on/off feature.
The PS100W Series are available with “positive logic” or “negative logic” (option).

Logic Table

Logic State

(Pin 2)

Logic low-

Switch closed

Logic high-

Switch open

Negative

Logic

Module on Module off

Module off Module on

Millimeters x.x ±0.5 x.xx ±0.25

Positive

Logic

External Output Trim

The output can be trimmed externally (±10%) using a fixed resistor or
a trimpot as shown.

All specifications typical at nominal line, full load and 25°C unless otherwise stated.

Powersolve Electronics Ltd. 8A Arnhem Road, Newbury, RG14 5RU. England

Tel: [phone] Fax: [phone] Email: [e-mail]

The output noise is measured with a 10µF tantalum and a 1.0µF
ceramic capacitor across the output.

Output Noise

High Density DC-DC Modules

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Application Note

Derating:
The case operating temperature range of the PS100W series is -40°C to +100°C. When operating the PS100W series, proper derating
or cooling is required.

Following is the derating curve for the PS100W without a heatsink; airflow along width (transverse).

Where:

The power dissipated (Pd):
Pd = Pi - Po = Po (1-n) / n

The thermal resistances are listed below:

Chart of Thermal Resistance vs Air Flow:

AIR FLOW RATE TYPICAL Rca

Natural Convection 20ft/min. (0.1m/s) 7.12°C/W
100ft./min. (0.5m/s) 6.21°C/W
200ft./min. (1.0m/s) 5.17°C/W
300ft./min. (1.5m/s) 4.29°C/W
400ft./min. (2.0m/s) 3.64°C/W
500ft./min. (2.5m/s) 2.96°C/W
600ft./min. (3.0m/s) 2.53°C/W
700ft./min. (3.5m/s) 2.37°C/W
800ft./min. (4.0m/s) 2.19°C/W

The temperature rise (∆T):

∆T = Pd * Rca

Powersolve Electronics Ltd. 8A Arnhem Road, Newbury, RG14 5RU. England

Tel: [phone] Fax: [phone] Email: [e-mail]